Electron backscatter diffraction: Difference between revisions

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EBSD and [[digital image correlation]] (DIC) can be used together to analyse the microstructure and deformation behaviour of materials. DIC is a method that uses digital image processing techniques to measure deformation and strain fields in materials.<ref>{{Cite journal |last1=Stinville |first1=J. C. |last2=Callahan |first2=P. G. |last3=Charpagne |first3=M. A. |last4=Echlin |first4=M. P. |last5=Valle |first5=V. |last6=Pollock |first6=T. M. |date=2020 |title=Direct measurements of slip irreversibility in a nickel-based superalloy using high-resolution digital image correlation |journal=Acta Materialia |volume=186 |pages=172–189 |doi=10.1016/j.actamat.2019.12.009 |bibcode=2020AcMat.186..172S |osti=1803462 |s2cid=213631580 |doi-access=free }}</ref> By combining EBSD and DIC, researchers can obtain both crystallographic and mechanical information about a material simultaneously.<ref>{{Cite journal |last1=Charpagne |first1=Marie-Agathe |last2=Strub |first2=Florian |last3=Pollock |first3=Tresa M. |date=2019|title=Accurate reconstruction of EBSD datasets by a multimodal data approach using an evolutionary algorithm |journal=Materials Characterization |volume=150 |pages=184–198 |doi=10.1016/j.matchar.2019.01.033 |arxiv=1903.02988 |s2cid=71144677 }}</ref> This allows for a more comprehensive understanding of the relationship between microstructure and mechanical behaviour, which is particularly useful in fields such as materials science and engineering.<ref>{{Cite journal |last1=Zhao |first1=Chong |last2=Stewart |first2=David |last3=Jiang |first3=Jun |last4=Dunne |first4=Fionn P. E. |date=2018 |title=A comparative assessment of iron and cobalt-based hard-facing alloy deformation using HR-EBSD and HR-DIC |journal=Acta Materialia |volume=159 |pages=173–186 |doi=10.1016/j.actamat.2018.08.021 |bibcode=2018AcMat.159..173Z |hdl=10044/1/68967 |s2cid=139436094 |hdl-access=free }}</ref>
DIC can identify regions of strain localisation in a material, while EBSD can provide information about the microstructure in these regions. By combining these techniques, researchers can gain insights into the mechanisms responsible for the observed strain localisation.<ref>{{Cite journal |last1=Orozco-Caballero |first1=Alberto |last2=Jackson |first2=Thomas |last3=da Fonseca |first3=João Quinta |date=2021 |title=High-resolution digital image correlation study of the strain localization during loading of a shot-peened RR1000 nickel-based superalloy |journal=Acta Materialia |volume=220 |pages=117306 |doi=10.1016/j.actamat.2021.117306 |bibcode=2021AcMat.22017306O |s2cid=240539022 |url=https://pure.manchester.ac.uk/ws/files/198822339/210828_ShotP_Manuscript_w_Figures_clean.pdf |access-date=20 March 2023 |archive-date=25 March 2023 |archive-url=https://web.archive.org/web/20230325200439/https://pure.manchester.ac.uk/ws/files/198822339/210828_ShotP_Manuscript_w_Figures_clean.pdf |url-status=live }}</ref> For example, EBSD can be used to determine the grain orientations and boundary misorientations before and after deformation. In contrast, DIC can be used to measure the strain fields in the material during deformation.<ref>{{Cite journal |last1=Ye |first1=Zhenhua |last2=Li |first2=Chuanwei |last3=Zheng |first3=Mengyao |last4=Zhang |first4=Xinyu |last5=Yang |first5=Xudong |last6=Gu |first6=Jianfeng |date=2022 |title=In situ EBSD/DIC-based investigation of deformation and fracture mechanism in FCC- and L12-structured FeCoNiV high-entropy alloys |journal=International Journal of Plasticity |volume=152 |pages=103247 |doi=10.1016/j.ijplas.2022.103247 |s2cid=246553822 }}</ref><ref name=":40">{{Cite journal |last1=Hestroffer |first1=Jonathan M. |last2=Stinville |first2=Jean-Charles |last3=Charpagne |first3=Marie-Agathe |last4=Miller |first4=Matthew P. |last5=Pollock |first5=Tresa M. |last6=Beyerlein |first6=Irene J. |date=2023 |title=Slip localization behavior at triple junctions in nickel-base superalloys |journal=Acta Materialia |volume=249 |pages=118801 |doi=10.1016/j.actamat.2023.118801 |bibcode=2023AcMat.24918801H |s2cid=257216017 }}</ref> Or EBSD can be used to identify the activation of different slip systems during deformation, while DIC can be used to measure the associated strain fields.<ref>{{Cite journal |last1=Sperry |first1=Ryan |last2=Han |first2=Songyang |last3=Chen |first3=Zhe |last4=Daly |first4=Samantha H.|author4-link= Samantha Daly |last5=Crimp |first5=Martin A. |last6=Fullwood |first6=David T. |date=2021 |title=Comparison of EBSD, DIC, AFM, and ECCI for active slip system identification in deformed Ti-7Al |journal=Materials Characterization |volume=173 |pages=110941 |doi=10.1016/j.matchar.2021.110941 |s2cid=233839426 |doi-access=free }}</ref> By correlating these data, researchers can better understand the role of different deformation mechanisms in the material's mechanical behaviour.<ref>{{Cite journal |last1=Gao |first1=Wenjie |last2=Lu |first2=Junxia |last3=Zhou |first3=Jianli |last4=Liu |first4=Ling'en |last5=Wang |first5=Jin |last6=Zhang |first6=Yuefei |last7=Zhang |first7=Ze |date=2022|title=Effect of grain size on deformation and fracture of Inconel718: An in-situ SEM-EBSD-DIC investigation |journal=Materials Science and Engineering: A |volume=861 |pages=144361 |doi=10.1016/j.msea.2022.144361 |s2cid=253797056 }}</ref>
Overall, the combination of EBSD and DIC provides a powerful tool for investigating materials' microstructure and deformation behaviour. This approach can be applied to a wide range of materials and deformation conditions and has the potential to yield insights into the fundamental mechanisms underlying mechanical behaviour.<ref name=":40" /><ref>{{Cite journal |last1=Di Gioacchino |first1=Fabio |last2=Quinta da Fonseca |first2=João |date=2015 |title=An experimental study of the polycrystalline plasticity of austenitic stainless steel |journal=International Journal of Plasticity |volume=74 |pages=92–109 |doi=10.1016/j.ijplas.2015.05.012 |doi-access=free }}</ref>